Snap-fastener top



G. F. PULLEN'.

SNAP FASTENER `TOP. APPucAToN'HLED MARIS, 1922.

Patented Aug. 15, 1922.

Ey .5 22 l? -10 f' INVENTOR.

Larg'eYPazlZe/a A TTORNEY` ra! L GEORGE r. PULLEN, or WATERBUNY, CONNECTICUT, .assreNo'R TO'WATERBURY FASTENER COMPANY, or WATERBURY, CONNECTICUT, a comORA'JJIONor1 CONNECTICUT. p

To @ZZ wzm t may Concern:

Be it known that I, GEORGEF. PULLEN, a citizen of the United States, and a resident of'fWa'terbury, county of New I-Iaven', and State of;Connecticut, have invented certain new and useful Improvements in Snap-Fastener Tops, of which the following is a specification.

This invention relates ato separable snap fasteners and more particularly to a snap fastener top having a cover of celluloid o r other thermoplastic material. a

One objectof this invention is to provide a snap fastener top of the above character which will be so constructed that the celluy turning relative to the collet.

`A further object vis toprovide a snap fastener top of the above'nature in which the collet is provided. with an outer vertical angeyhaving serrations adapted when in use to be embedded in the Celluloid shell;y

With these and other objects in view, there has been illustrated in the accompanying drawing, one form in which the invention may be conveniently embodied in practice.

. F ig.` l represents a plan view of the snap fastener top. f F ig. 2 is a top plan view ofthe collet member shown in detached position. Fig. 3 is a sectionalview of thesnap fastener top taken along the yline 3 3 ofv Fig. l, looking in the direction 'of the are.

rows. y I i v Fig. 4L is avplan view of the metal-blank from which the collet is formed. A

. Fig. 5 is a perspective view offthe partly finished collet, after'the upstanding flange has been formed on the Outer edge .of the metal blank.

Fig. 6 is a perspective view of the collet f inthe next stage of its manufacture, showingl its appearance after the central portion of the blank-has been cupped.

Fig, 7 isa rear perspectiveview of the collet in its final condition-after the cen-V tral flange and aperture have been ,formedv therein.

In previous forms of snap fastener tops in which flexible shells, such as celluloid,

,were employed, there has always been a Appiication tied Maren s, 1922. "seriall N0.5542 ,o13.

showing-x its appearance,-

sNAr-FSTENER Tor. j

' Specficationof Itetters Patent. i Allg.` v15,' 1922...'

tendency fork shells 4vto becomevloosened y on their supports, causing the emblems, `designs, orother indiciav formed-on the shells to twist out of their :norm/alor right-side upv'position.v`

= By means of the .presenty `inventioman improved form of collet has been-provided whereby the shell will be positively held right-side upf/.and cannot twist .about to an unreadable or inartisticposition.

Referring now to the drawing in which like referencefnumeralsdenote correspond-v4 ing partsthroughout the severallviews, l()

represents a cap-disc 'or blank which'serve's y as a support for the I'upper portion of theV shell. The blankl() is cupped slightlyand rests upon. the flat outer riinv of-a spreader has its convex sidel disposedupwardly.v The" r rim, or lower edge, of the cuppedblank 101 ll, The spreader `ll, which serves to spreadv i the eyeletand'also to space the blanklO:

from the colletl and. thereby. givethede'- sired 'thickness tof-the snap fastener top,

has a central aperture 12 .surrounded by an annular flange i3. The annular'ange is formed .in the shape Ofa truncated .coneand extends ydownwardly vinto an upturned interior-flange 14 of va col-let'l'. v. i

an upturned intermediate vertical `annular flange 17. The intermediate. vertical flange;

serrations y 21 throughout `its circumference, which ser-rations are 1 adapted 'toi bey 'embedded -in*the plastic. celluloid shellv when` the partsv are`` assembled, as `willbe herein-if.

after described.'v

. -Surrounding'they blank or cap-*disc l0, 'the spreader 11, andthe colletfl, is anouter shell 22v of-any:suitableyplasticy material,

A' Immediately surrounding the inner flange 14, the collet is provided' vwith a horizontalv bottom annular port-ion 16, terminating in y is p'rovidediat Aits y edgefQO with a. plurality -ofequally spaced f preferablyk of celluloid. This outer shell 22 forms the' outer surface of the snap .fastener top and has` its *circumferencev 23f-bent in-` wardly arounduthe.-serrati`onsz`2l1 The cir;-` cumference "23, of vsaid shell .f bridges` the space between. the intermediate and outer.4

flanges 17 and y19 ofthe collet. Theshellyg.

y:now be described, Referring to Figs. e to 7, 2d represents the original circular metal stamping or blank from which the colletus formed. This blank is provided on its circumference with a plurality of equally spaced serrations or projections, preferably inthe form of V-shaped notches. The first step in forming the collet from the blank 24 is to press down the outer vertical flange 19- in afsuitable die,'producing the article as shown in Fig. 5. The second operation is to "stamp down a cupped portion 25 of the shape' shown in Fig. 6. T he final operation consists in simultaneously stamping out a circular aperture in the center of the cupped portion 25, and bending up an inner flange yWhen it is desired to assemble the snap fastener top, it will only be necessary to` arrange the blank 10, the spreader 11, and the collet 15 concentrically. l/Vith the parts in this position, the outer celluloid shell 22,

, which has preferablybeen previously heated to a plasticv condition, is then placed concentrically upon the top of the blank 10. rllhe shell may then be bent down over the sides of the spreader and collet and forced inwardly around the outer vertical'flange into contact with the interior flange 17;'. During lthefinal step of assembling the device, which is preferably performed in a mold, the serrations 21 of the outer flange ofthe collet will become firmly embedded on the inside surface of the plastic celluloid shell, and the shell and collet Will be thus positively locked together. In its final condition the bottom surface of the shell will preferably lie flush with the horizontal portion 16V of the collet.

' 1t will be understood that the snap fas* tener top herein disclosed will be adapted to a wide variety of uses, but will probably be most used inthe manufacture ofglovebuttons. 1t will also be understood that when in use, it willvr be snapped over the usual eyelet and that a fabric or other sheet material will'be held securely between said fastener top and eyelet.

Moreover, the snap fastened top embodying this invention may be made of any desired size or shape and of any suitable materials. However, it is preferred to make the shell of celluloid, the cap-disc of tin, and the spreader and collet of steel.

.. While there has been disclosed in this applieation one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure but may be modified andembodied in various other forms without departing from its spirit. 1n short, the invention includes all the modiflcations and embodiments coming within the scope of the followingv claims.

Having thus fully described the invention, what is claimed new, and for which it is desired to secure Letters Patent, is:

l. ln a top member for a separable snap fastener, the combination with an exterior shell, of a cap-disc, a spreader,l and a collet, said shell enclosing said cap-disc, spreader and collet, and engaging an outer vertical flange on said collet, said flange having means for preventing rotation ofthe shell relative thereto.

2. 1n a snap-fastener top, the combination with an exterior shell, of a cap-disc, a spreader, and a collet, said colletphaving intermediate vand outer vertical flanges, said shell extending between the intermediate and outer flanges and being locked against rota-tion relative to said outer flange.

3. 1n a snap fastener top, a cap-disc, a spreader, and a collet arranged in edge contact one upon the other, said collet having van exterior vertical flange, and a shell enclosing said cap-disc, spreader, vand collet, said shell being in non-rotative engagement with the edge of the exterior flange.

l. 1n a snap fastener top, the combination with a cap-disc, of a spreadena collet, and a shell of thermoplastic material, said collet having a series of vertical projections formed on its perimeter, said projections being embedded in said shell to positivelyy hold said shell against turning.

5. ln a snap fastener top, the combination with a cap-disc, of a spreader, a collet, and a .shell of thermoplastic material, said collet having an outer vertical flange locked to the edge of said shell for holding said shell against turning.

6. 1n a snap fastener top, the combination with a cap-disc, of a spreader, a collet, and a shell of thermoplastic material, said collet having an outer serrated vertical flange embedded in the edge of said shell for holding said shell against turning.

7. 1n a snap fastener' top, the combina- Y tion with a cap-disc, of a spreader, a collet, and a shell of thermoplastic material, said collet having an 4outer' serrated vertical flange embedded in said shell for holding said shell against turning.

8. 1n a snap fastener' top, the combination with a cap-disc, of a spreader, a collet, and a shell of thermoplastic material, said collet having an outer vertical flange engaging the edge of said shell, said flange having Vmeans for locking said shell against turning relative thereto. l

9. 1n a top for a separable snap fastener,

the .combination with a cap-disc, of a spreader, a collet, and acelluloid shell, said collet having a flat base, and a U'vshaped annular rim connected to said base, the .outer between said cap ldisc and said collet, said'.` i

vertical edge of said U-shaped rim having a collet having an outer vertical, notched rim 10 series of projections adapted to engage said embedded in said Celluloid shell for preventl Celluloid shell when assembled, whereby said ing it from turning.

shell will be prevented from turning relative In testimony whereof,` I have aHiXed mfy` to said collet. signature to this specification.

l0. In a snap fastener top, a celluloid shell.` v a cap-disc, a collet, and a spreader located GEORGE F. PULLEN. 

